title: Postoperative radiotherapy in breast cancer.
mesh_terms: D001943:Breast Neoplasms / Q000188:drug therapy / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control; D011182:Postoperative Care; D012306:Risk